Twelve-year-old Lizzie Durango lives in a zoo, spending her days taking note of the animals' behaviors, then she meets runaway Tyler Briggs and together they investigate the wolves who are suddenly dying.
Twelve-year-old Lexington, a foundling raised in a zoo, spends a summer cementing friendships, growing closer to the elephant that saved her life, and learning about her family and herself.
If Gerald McGrew ran the zoo, he'd let all the animals go and fill it with more unusual beasts--a ten-footed lion, an Elephant-Cat, a Mulligatawny, a Tufted Mazurka, and others.
When Buzz and Liz visit the zoo, their pets Fly Guy and Fly Girl go looking for food, and find the Creatures of the Night exhibit, where they see animals that would like to eat them.
A.J. and his fellow third-graders from Ella Mentry School, including new student Alexia, go on a field trip to the zoo, where they meet a very strange zookeeper.
Lyle is perfectly happy living with the Primms on East 88th Street in New York City until Mr. Grumps, their irritable neighbor, has Lyle put in the zoo.